We have a Universal package booked 6/5/19-6/10/19. We have 4 day Universal tickets & I was planning on going to Sea World for one day. Are the Universal tickets good for the length of stay? We'd probably go to Sea World in the middle of the trip. I know that Sea World has the Sunny Day policy but we only have time for one day, so that won't help us. How often does Sea World have to close for weather in the summer?